2 // attribute.cs: Attribute Handler
4 // Author: Ravi Pratap (ravi@ximian.com)
5 // Marek Safar (marek.safar@seznam.cz)
7 // Licensed under the terms of the GNU GPL
9 // (C) 2001 Ximian, Inc (http://www.ximian.com)
14 using System.Diagnostics;
15 using System.Collections;
16 using System.Collections.Specialized;
17 using System.Reflection;
18 using System.Reflection.Emit;
19 using System.Runtime.InteropServices;
20 using System.Runtime.CompilerServices;
21 using System.Security;
22 using System.Security.Permissions;
26 namespace Mono.CSharp {
29 /// Base class for objects that can have Attributes applied to them.
31 public abstract class Attributable {
33 /// Attributes for this type
35 protected Attributes attributes;
37 public Attributable (Attributes attrs)
40 OptAttributes = attrs;
43 public Attributes OptAttributes
51 if (attributes != null) {
52 attributes.AttachTo (this);
58 /// Use member-specific procedure to apply attribute @a in @cb to the entity being built in @builder
60 public abstract void ApplyAttributeBuilder (Attribute a, CustomAttributeBuilder cb);
63 /// Returns one AttributeTarget for this element.
65 public abstract AttributeTargets AttributeTargets { get; }
67 public abstract IResolveContext ResolveContext { get; }
69 public abstract bool IsClsComplianceRequired ();
72 /// Gets list of valid attribute targets for explicit target declaration.
73 /// The first array item is default target. Don't break this rule.
75 public abstract string[] ValidAttributeTargets { get; }
78 public class Attribute {
79 public readonly string ExplicitTarget;
80 public AttributeTargets Target;
82 // TODO: remove this member
83 public readonly string Name;
84 public readonly Expression LeftExpr;
85 public readonly string Identifier;
87 readonly ArrayList PosArguments;
88 readonly ArrayList NamedArguments;
90 public readonly Location Location;
95 readonly bool nameEscaped;
97 // It can contain more onwers when the attribute is applied to multiple fiels.
98 Attributable[] owners;
100 static readonly AttributeUsageAttribute DefaultUsageAttribute = new AttributeUsageAttribute (AttributeTargets.All);
101 static Assembly orig_sec_assembly;
102 public static readonly object[] EmptyObject = new object [0];
104 // non-null if named args present after Resolve () is called
105 PropertyInfo [] prop_info_arr;
106 FieldInfo [] field_info_arr;
107 object [] field_values_arr;
108 object [] prop_values_arr;
109 object [] pos_values;
111 static PtrHashtable usage_attr_cache;
112 // Cache for parameter-less attributes
113 static PtrHashtable att_cache;
115 public Attribute (string target, Expression left_expr, string identifier, object[] args, Location loc, bool nameEscaped)
117 LeftExpr = left_expr;
118 Identifier = identifier;
119 Name = LeftExpr == null ? identifier : LeftExpr + "." + identifier;
121 PosArguments = (ArrayList)args [0];
122 NamedArguments = (ArrayList)args [1];
125 ExplicitTarget = target;
126 this.nameEscaped = nameEscaped;
134 public static void Reset ()
136 usage_attr_cache = new PtrHashtable ();
137 att_cache = new PtrHashtable ();
140 public void AttachTo (Attributable owner)
142 if (this.owners == null) {
143 this.owners = new Attributable[1] { owner };
147 // When the same attribute is attached to multiple fiels
148 // we use this extra_owners as a list of owners. The attribute
149 // then can be removed because will be emitted when first owner
151 Attributable[] new_array = new Attributable [this.owners.Length + 1];
152 owners.CopyTo (new_array, 0);
153 new_array [owners.Length] = owner;
154 this.owners = new_array;
155 owner.OptAttributes = null;
158 void Error_InvalidNamedArgument (string name)
160 Report.Error (617, Location, "`{0}' is not a valid named attribute argument. Named attribute arguments " +
161 "must be fields which are not readonly, static, const or read-write properties which are " +
162 "public and not static",
166 void Error_InvalidNamedAgrumentType (string name)
168 Report.Error (655, Location, "`{0}' is not a valid named attribute argument because it is not a valid " +
169 "attribute parameter type", name);
172 public static void Error_AttributeArgumentNotValid (Location loc)
174 Report.Error (182, loc,
175 "An attribute argument must be a constant expression, typeof " +
176 "expression or array creation expression");
179 public void Error_MissingGuidAttribute ()
181 Report.Error (596, Location, "The Guid attribute must be specified with the ComImport attribute");
185 /// This is rather hack. We report many emit attribute error with same error to be compatible with
186 /// csc. But because csc has to report them this way because error came from ilasm we needn't.
188 public void Error_AttributeEmitError (string inner)
190 Report.Error (647, Location, "Error during emitting `{0}' attribute. The reason is `{1}'",
191 TypeManager.CSharpName (Type), inner);
194 public void Error_InvalidSecurityParent ()
196 Error_AttributeEmitError ("it is attached to invalid parent");
205 protected virtual TypeExpr ResolveAsTypeTerminal (Expression expr, IResolveContext ec, bool silent)
207 return expr.ResolveAsTypeTerminal (ec, silent);
210 Type ResolvePossibleAttributeType (string name, bool silent, ref bool is_attr)
212 IResolveContext rc = Owner.ResolveContext;
215 if (LeftExpr == null) {
216 te = ResolveAsTypeTerminal (new SimpleName (name, Location), rc, silent);
218 te = ResolveAsTypeTerminal (new MemberAccess (LeftExpr, name), rc, silent);
225 if (TypeManager.IsSubclassOf (t, TypeManager.attribute_type)) {
227 } else if (!silent) {
228 Report.SymbolRelatedToPreviousError (t);
229 Report.Error (616, Location, "`{0}': is not an attribute class", TypeManager.CSharpName (t));
235 /// Tries to resolve the type of the attribute. Flags an error if it can't, and complain is true.
237 void ResolveAttributeType ()
239 bool t1_is_attr = false;
240 Type t1 = ResolvePossibleAttributeType (Identifier, true, ref t1_is_attr);
242 bool t2_is_attr = false;
243 Type t2 = nameEscaped ? null :
244 ResolvePossibleAttributeType (Identifier + "Attribute", true, ref t2_is_attr);
246 if (t1_is_attr && t2_is_attr) {
247 Report.Error (1614, Location, "`{0}' is ambiguous between `{0}' and `{0}Attribute'. " +
248 "Use either `@{0}' or `{0}Attribute'", GetSignatureForError ());
249 resolve_error = true;
263 if (t1 == null && t2 == null)
264 ResolvePossibleAttributeType (Identifier, false, ref t1_is_attr);
266 ResolvePossibleAttributeType (Identifier, false, ref t1_is_attr);
268 ResolvePossibleAttributeType (Identifier + "Attribute", false, ref t2_is_attr);
270 resolve_error = true;
273 public virtual Type ResolveType ()
275 if (Type == null && !resolve_error)
276 ResolveAttributeType ();
280 public string GetSignatureForError ()
283 return TypeManager.CSharpName (Type);
285 return LeftExpr == null ? Identifier : LeftExpr.GetSignatureForError () + "." + Identifier;
288 bool IsValidArgumentType (Type t)
291 t = t.GetElementType ();
293 return TypeManager.IsPrimitiveType (t) ||
294 TypeManager.IsEnumType (t) ||
295 t == TypeManager.string_type ||
296 t == TypeManager.object_type ||
297 t == TypeManager.type_type;
300 public CustomAttributeBuilder Resolve ()
305 resolve_error = true;
308 ResolveAttributeType ();
313 if (Type.IsAbstract) {
314 Report.Error (653, Location, "Cannot apply attribute class `{0}' because it is abstract", GetSignatureForError ());
318 ObsoleteAttribute obsolete_attr = AttributeTester.GetObsoleteAttribute (Type);
319 if (obsolete_attr != null) {
320 AttributeTester.Report_ObsoleteMessage (obsolete_attr, TypeManager.CSharpName (Type), Location);
323 if (PosArguments == null && NamedArguments == null) {
324 object o = att_cache [Type];
326 resolve_error = false;
327 return (CustomAttributeBuilder)o;
331 Attributable owner = Owner;
332 EmitContext ec = new EmitContext (owner.ResolveContext, owner.ResolveContext.DeclContainer, owner.ResolveContext.DeclContainer,
333 Location, null, null, owner.ResolveContext.DeclContainer.ModFlags, false);
334 ec.IsAnonymousMethodAllowed = false;
336 ConstructorInfo ctor = ResolveConstructor (ec);
340 CustomAttributeBuilder cb;
343 if (NamedArguments == null) {
344 cb = new CustomAttributeBuilder (ctor, pos_values);
346 if (pos_values.Length == 0)
347 att_cache.Add (Type, cb);
349 resolve_error = false;
353 if (!ResolveNamedArguments (ec)) {
357 cb = new CustomAttributeBuilder (ctor, pos_values,
358 prop_info_arr, prop_values_arr,
359 field_info_arr, field_values_arr);
361 resolve_error = false;
365 Error_AttributeArgumentNotValid (Location);
370 protected virtual ConstructorInfo ResolveConstructor (EmitContext ec)
372 if (PosArguments != null) {
373 for (int i = 0; i < PosArguments.Count; i++) {
374 Argument a = (Argument) PosArguments [i];
376 if (!a.Resolve (ec, Location))
381 Expression mg = Expression.MemberLookup (ec.ContainerType,
382 Type, ".ctor", MemberTypes.Constructor,
383 BindingFlags.Public | BindingFlags.Instance | BindingFlags.DeclaredOnly,
389 MethodBase constructor = Invocation.OverloadResolve (
390 ec, (MethodGroupExpr) mg, PosArguments, false, Location);
392 if (constructor == null)
395 ObsoleteAttribute oa = AttributeTester.GetMethodObsoleteAttribute (constructor);
396 if (oa != null && !Owner.ResolveContext.IsInObsoleteScope) {
397 AttributeTester.Report_ObsoleteMessage (oa, mg.GetSignatureForError (), mg.Location);
400 if (PosArguments == null) {
401 pos_values = EmptyObject;
402 return (ConstructorInfo)constructor;
405 ParameterData pd = TypeManager.GetParameterData (constructor);
407 int pos_arg_count = PosArguments.Count;
408 int last_real_param = pd.Count;
410 pos_values = new object [pos_arg_count];
413 // When the params is not filled we need to put one
414 if (last_real_param > pos_arg_count) {
415 object [] new_pos_values = new object [pos_arg_count + 1];
416 pos_values.CopyTo (new_pos_values, 0);
417 new_pos_values [pos_arg_count] = new object [] {} ;
418 pos_values = new_pos_values;
423 for (int j = 0; j < pos_arg_count; ++j) {
424 Argument a = (Argument) PosArguments [j];
426 if (!a.Expr.GetAttributableValue (a.Type, out pos_values [j]))
429 if (j < last_real_param)
432 if (j == last_real_param) {
433 object [] array = new object [pos_arg_count - last_real_param];
434 array [0] = pos_values [j];
435 pos_values [j] = array;
439 object [] params_array = (object []) pos_values [last_real_param];
440 params_array [j - last_real_param] = pos_values [j];
443 // Adjust the size of the pos_values if it had params
444 if (last_real_param != pos_arg_count) {
445 object [] new_pos_values = new object [last_real_param + 1];
446 Array.Copy (pos_values, new_pos_values, last_real_param + 1);
447 pos_values = new_pos_values;
450 // Here we do the checks which should be done by corlib or by runtime.
451 // However Zoltan doesn't like it and every Mono compiler has to do it again.
453 if (Type == TypeManager.guid_attr_type) {
455 new Guid ((string)pos_values [0]);
457 catch (Exception e) {
458 Error_AttributeEmitError (e.Message);
463 if (Type == TypeManager.attribute_usage_type && (int)pos_values [0] == 0) {
464 Report.Error (591, Location, "Invalid value for argument to `System.AttributeUsage' attribute");
468 if (Type == TypeManager.indexer_name_type || Type == TypeManager.conditional_attribute_type) {
469 if (!Tokenizer.IsValidIdentifier ((string)pos_values [0])) {
470 Report.Error (633, ((Argument)PosArguments[0]).Expr.Location,
471 "The argument to the `{0}' attribute must be a valid identifier", GetSignatureForError ());
476 if (Type == TypeManager.methodimpl_attr_type && pos_values.Length == 1 &&
477 pd.ParameterType (0) == TypeManager.short_type &&
478 !System.Enum.IsDefined (typeof (MethodImplOptions), pos_values [0].ToString ())) {
479 Error_AttributeEmitError ("Incorrect argument value.");
483 return (ConstructorInfo)constructor;
486 protected virtual bool ResolveNamedArguments (EmitContext ec)
488 int named_arg_count = NamedArguments.Count;
490 ArrayList field_infos = new ArrayList (named_arg_count);
491 ArrayList prop_infos = new ArrayList (named_arg_count);
492 ArrayList field_values = new ArrayList (named_arg_count);
493 ArrayList prop_values = new ArrayList (named_arg_count);
495 ArrayList seen_names = new ArrayList(named_arg_count);
497 foreach (DictionaryEntry de in NamedArguments) {
498 string member_name = (string) de.Key;
500 if (seen_names.Contains(member_name)) {
501 Report.Error(643, Location, "'" + member_name + "' duplicate named attribute argument");
504 seen_names.Add(member_name);
506 Argument a = (Argument) de.Value;
507 if (!a.Resolve (ec, Location))
510 Expression member = Expression.MemberLookup (
511 ec.ContainerType, Type, member_name,
512 MemberTypes.Field | MemberTypes.Property,
513 BindingFlags.Public | BindingFlags.Instance,
516 if (member == null) {
517 member = Expression.MemberLookup (ec.ContainerType, Type, member_name,
518 MemberTypes.Field | MemberTypes.Property, BindingFlags.NonPublic | BindingFlags.Instance,
521 if (member != null) {
522 Report.SymbolRelatedToPreviousError (member.Type);
523 Expression.ErrorIsInaccesible (Location, member.GetSignatureForError ());
529 Report.Error (117, Location, "`{0}' does not contain a definition for `{1}'",
530 TypeManager.CSharpName (Type), member_name);
534 if (!(member is PropertyExpr || member is FieldExpr)) {
535 Error_InvalidNamedArgument (member_name);
539 ObsoleteAttribute obsolete_attr;
541 if (member is PropertyExpr) {
542 PropertyInfo pi = ((PropertyExpr) member).PropertyInfo;
544 if (!pi.CanWrite || !pi.CanRead) {
545 Report.SymbolRelatedToPreviousError (pi);
546 Error_InvalidNamedArgument (member_name);
550 if (!IsValidArgumentType (pi.PropertyType)) {
551 Report.SymbolRelatedToPreviousError (pi);
552 Error_InvalidNamedAgrumentType (member_name);
557 if (!a.Expr.GetAttributableValue (pi.PropertyType, out value))
560 PropertyBase pb = TypeManager.GetProperty (pi);
562 obsolete_attr = pb.GetObsoleteAttribute ();
564 obsolete_attr = AttributeTester.GetMemberObsoleteAttribute (pi);
566 prop_values.Add (value);
570 FieldInfo fi = ((FieldExpr) member).FieldInfo;
573 Error_InvalidNamedArgument (member_name);
577 if (!IsValidArgumentType (fi.FieldType)) {
578 Report.SymbolRelatedToPreviousError (fi);
579 Error_InvalidNamedAgrumentType (member_name);
584 if (!a.Expr.GetAttributableValue (fi.FieldType, out value))
587 FieldBase fb = TypeManager.GetField (fi);
589 obsolete_attr = fb.GetObsoleteAttribute ();
591 obsolete_attr = AttributeTester.GetMemberObsoleteAttribute (fi);
593 field_values.Add (value);
594 field_infos.Add (fi);
597 if (obsolete_attr != null && !Owner.ResolveContext.IsInObsoleteScope)
598 AttributeTester.Report_ObsoleteMessage (obsolete_attr, member.GetSignatureForError (), member.Location);
601 prop_info_arr = new PropertyInfo [prop_infos.Count];
602 field_info_arr = new FieldInfo [field_infos.Count];
603 field_values_arr = new object [field_values.Count];
604 prop_values_arr = new object [prop_values.Count];
606 field_infos.CopyTo (field_info_arr, 0);
607 field_values.CopyTo (field_values_arr, 0);
609 prop_values.CopyTo (prop_values_arr, 0);
610 prop_infos.CopyTo (prop_info_arr, 0);
616 /// Get a string containing a list of valid targets for the attribute 'attr'
618 public string GetValidTargets ()
620 StringBuilder sb = new StringBuilder ();
621 AttributeTargets targets = GetAttributeUsage ().ValidOn;
623 if ((targets & AttributeTargets.Assembly) != 0)
624 sb.Append ("assembly, ");
626 if ((targets & AttributeTargets.Module) != 0)
627 sb.Append ("module, ");
629 if ((targets & AttributeTargets.Class) != 0)
630 sb.Append ("class, ");
632 if ((targets & AttributeTargets.Struct) != 0)
633 sb.Append ("struct, ");
635 if ((targets & AttributeTargets.Enum) != 0)
636 sb.Append ("enum, ");
638 if ((targets & AttributeTargets.Constructor) != 0)
639 sb.Append ("constructor, ");
641 if ((targets & AttributeTargets.Method) != 0)
642 sb.Append ("method, ");
644 if ((targets & AttributeTargets.Property) != 0)
645 sb.Append ("property, indexer, ");
647 if ((targets & AttributeTargets.Field) != 0)
648 sb.Append ("field, ");
650 if ((targets & AttributeTargets.Event) != 0)
651 sb.Append ("event, ");
653 if ((targets & AttributeTargets.Interface) != 0)
654 sb.Append ("interface, ");
656 if ((targets & AttributeTargets.Parameter) != 0)
657 sb.Append ("parameter, ");
659 if ((targets & AttributeTargets.Delegate) != 0)
660 sb.Append ("delegate, ");
662 if ((targets & AttributeTargets.ReturnValue) != 0)
663 sb.Append ("return, ");
666 if ((targets & AttributeTargets.GenericParameter) != 0)
667 sb.Append ("type parameter, ");
669 return sb.Remove (sb.Length - 2, 2).ToString ();
673 /// Returns AttributeUsage attribute for this type
675 AttributeUsageAttribute GetAttributeUsage ()
677 AttributeUsageAttribute ua = usage_attr_cache [Type] as AttributeUsageAttribute;
681 Class attr_class = TypeManager.LookupClass (Type);
683 if (attr_class == null) {
684 object[] usage_attr = Type.GetCustomAttributes (TypeManager.attribute_usage_type, true);
685 ua = (AttributeUsageAttribute)usage_attr [0];
686 usage_attr_cache.Add (Type, ua);
690 Attribute a = attr_class.OptAttributes == null
692 : attr_class.OptAttributes.Search (TypeManager.attribute_usage_type);
695 ? DefaultUsageAttribute
696 : a.GetAttributeUsageAttribute ();
698 usage_attr_cache.Add (Type, ua);
702 AttributeUsageAttribute GetAttributeUsageAttribute ()
704 if (pos_values == null)
705 // TODO: It is not neccessary to call whole Resolve (ApplyAttribute does it now) we need only ctor args.
706 // But because a lot of attribute class code must be rewritten will be better to wait...
710 return DefaultUsageAttribute;
712 AttributeUsageAttribute usage_attribute = new AttributeUsageAttribute ((AttributeTargets)pos_values [0]);
714 object field = GetPropertyValue ("AllowMultiple");
716 usage_attribute.AllowMultiple = (bool)field;
718 field = GetPropertyValue ("Inherited");
720 usage_attribute.Inherited = (bool)field;
722 return usage_attribute;
726 /// Returns custom name of indexer
728 public string GetIndexerAttributeValue ()
730 if (pos_values == null)
731 // TODO: It is not neccessary to call whole Resolve (ApplyAttribute does it now) we need only ctor args.
732 // But because a lot of attribute class code must be rewritten will be better to wait...
738 return pos_values [0] as string;
742 /// Returns condition of ConditionalAttribute
744 public string GetConditionalAttributeValue ()
746 if (pos_values == null)
747 // TODO: It is not neccessary to call whole Resolve (ApplyAttribute does it now) we need only ctor args.
748 // But because a lot of attribute class code must be rewritten will be better to wait...
754 return (string)pos_values [0];
758 /// Creates the instance of ObsoleteAttribute from this attribute instance
760 public ObsoleteAttribute GetObsoleteAttribute ()
762 if (pos_values == null)
763 // TODO: It is not neccessary to call whole Resolve (ApplyAttribute does it now) we need only ctor args.
764 // But because a lot of attribute class code must be rewritten will be better to wait...
770 if (pos_values == null || pos_values.Length == 0)
771 return new ObsoleteAttribute ();
773 if (pos_values.Length == 1)
774 return new ObsoleteAttribute ((string)pos_values [0]);
776 return new ObsoleteAttribute ((string)pos_values [0], (bool)pos_values [1]);
780 /// Returns value of CLSCompliantAttribute contructor parameter but because the method can be called
781 /// before ApplyAttribute. We need to resolve the arguments.
782 /// This situation occurs when class deps is differs from Emit order.
784 public bool GetClsCompliantAttributeValue ()
786 if (pos_values == null)
787 // TODO: It is not neccessary to call whole Resolve (ApplyAttribute does it now) we need only ctor args.
788 // But because a lot of attribute class code must be rewritten will be better to wait...
794 return (bool)pos_values [0];
797 public Type GetCoClassAttributeValue ()
799 if (pos_values == null)
805 return (Type)pos_values [0];
808 public bool CheckTarget ()
810 string[] valid_targets = Owner.ValidAttributeTargets;
811 if (ExplicitTarget == null || ExplicitTarget == valid_targets [0]) {
812 Target = Owner.AttributeTargets;
816 // TODO: we can skip the first item
817 if (((IList) valid_targets).Contains (ExplicitTarget)) {
818 switch (ExplicitTarget) {
819 case "return": Target = AttributeTargets.ReturnValue; return true;
820 case "param": Target = AttributeTargets.Parameter; return true;
821 case "field": Target = AttributeTargets.Field; return true;
822 case "method": Target = AttributeTargets.Method; return true;
823 case "property": Target = AttributeTargets.Property; return true;
825 throw new InternalErrorException ("Unknown explicit target: " + ExplicitTarget);
828 StringBuilder sb = new StringBuilder ();
829 foreach (string s in valid_targets) {
833 sb.Remove (sb.Length - 2, 2);
834 Report.Error (657, Location, "`{0}' is not a valid attribute location for this declaration. " +
835 "Valid attribute locations for this declaration are `{1}'", ExplicitTarget, sb.ToString ());
840 /// Tests permitted SecurityAction for assembly or other types
842 public bool CheckSecurityActionValidity (bool for_assembly)
844 SecurityAction action = GetSecurityActionValue ();
846 if ((action == SecurityAction.RequestMinimum || action == SecurityAction.RequestOptional ||
847 action == SecurityAction.RequestRefuse) && for_assembly)
851 if (action < SecurityAction.Demand || action > SecurityAction.InheritanceDemand) {
852 Error_AttributeEmitError ("SecurityAction is out of range");
856 if ((action != SecurityAction.RequestMinimum && action != SecurityAction.RequestOptional &&
857 action != SecurityAction.RequestRefuse) && !for_assembly)
861 Error_AttributeEmitError (String.Concat ("SecurityAction `", action, "' is not valid for this declaration"));
865 System.Security.Permissions.SecurityAction GetSecurityActionValue ()
867 return (SecurityAction)pos_values [0];
871 /// Creates instance of SecurityAttribute class and add result of CreatePermission method to permission table.
873 /// <returns></returns>
874 public void ExtractSecurityPermissionSet (ListDictionary permissions)
876 Type orig_assembly_type = null;
878 if (TypeManager.LookupDeclSpace (Type) != null) {
879 if (!RootContext.StdLib) {
880 orig_assembly_type = Type.GetType (Type.FullName);
882 string orig_version_path = Environment.GetEnvironmentVariable ("__SECURITY_BOOTSTRAP_DB");
883 if (orig_version_path == null) {
884 Error_AttributeEmitError ("security custom attributes can not be referenced from defining assembly");
888 if (orig_sec_assembly == null) {
889 string file = Path.Combine (orig_version_path, Driver.OutputFile);
890 orig_sec_assembly = Assembly.LoadFile (file);
893 orig_assembly_type = orig_sec_assembly.GetType (Type.FullName, true);
894 if (orig_assembly_type == null) {
895 Report.Warning (-112, 1, Location, "Self-referenced security attribute `{0}' " +
896 "was not found in previous version of assembly");
902 SecurityAttribute sa;
903 // For all non-selfreferencing security attributes we can avoid all hacks
904 if (orig_assembly_type == null) {
905 sa = (SecurityAttribute) Activator.CreateInstance (Type, pos_values);
907 if (prop_info_arr != null) {
908 for (int i = 0; i < prop_info_arr.Length; ++i) {
909 PropertyInfo pi = prop_info_arr [i];
910 pi.SetValue (sa, prop_values_arr [i], null);
914 // HACK: All security attributes have same ctor syntax
915 sa = (SecurityAttribute) Activator.CreateInstance (orig_assembly_type, new object[] { GetSecurityActionValue () } );
917 // All types are from newly created assembly but for invocation with old one we need to convert them
918 if (prop_info_arr != null) {
919 for (int i = 0; i < prop_info_arr.Length; ++i) {
920 PropertyInfo emited_pi = prop_info_arr [i];
921 PropertyInfo pi = orig_assembly_type.GetProperty (emited_pi.Name, emited_pi.PropertyType);
923 object old_instance = pi.PropertyType.IsEnum ?
924 System.Enum.ToObject (pi.PropertyType, prop_values_arr [i]) :
927 pi.SetValue (sa, old_instance, null);
933 perm = sa.CreatePermission ();
934 SecurityAction action = GetSecurityActionValue ();
936 // IS is correct because for corlib we are using an instance from old corlib
937 if (!(perm is System.Security.CodeAccessPermission)) {
939 case SecurityAction.Demand:
940 action = (SecurityAction)13;
942 case SecurityAction.LinkDemand:
943 action = (SecurityAction)14;
945 case SecurityAction.InheritanceDemand:
946 action = (SecurityAction)15;
951 PermissionSet ps = (PermissionSet)permissions [action];
953 if (sa is PermissionSetAttribute)
954 ps = new PermissionSet (sa.Unrestricted ? PermissionState.Unrestricted : PermissionState.None);
956 ps = new PermissionSet (PermissionState.None);
958 permissions.Add (action, ps);
959 } else if (!ps.IsUnrestricted () && (sa is PermissionSetAttribute) && sa.Unrestricted) {
960 ps = ps.Union (new PermissionSet (PermissionState.Unrestricted));
961 permissions [action] = ps;
963 ps.AddPermission (perm);
966 static object GetValue (object value)
968 if (value is EnumConstant)
969 return ((EnumConstant) value).GetValue ();
974 public object GetPropertyValue (string name)
976 if (prop_info_arr == null)
979 for (int i = 0; i < prop_info_arr.Length; ++i) {
980 if (prop_info_arr [i].Name == name)
981 return prop_values_arr [i];
987 object GetFieldValue (string name)
990 if (field_info_arr == null)
993 foreach (FieldInfo fi in field_info_arr) {
995 return GetValue (field_values_arr [i]);
1002 // Theoretically, we can get rid of this, since FieldBuilder.SetCustomAttribute()
1003 // and ParameterBuilder.SetCustomAttribute() are supposed to handle this attribute.
1004 // However, we can't, since it appears that the .NET 1.1 SRE hangs when given a MarshalAsAttribute.
1006 public UnmanagedMarshal GetMarshal (Attributable attr)
1008 UnmanagedType UnmanagedType;
1009 if (!RootContext.StdLib || pos_values [0].GetType () != typeof (UnmanagedType))
1010 UnmanagedType = (UnmanagedType) System.Enum.ToObject (typeof (UnmanagedType), pos_values [0]);
1012 UnmanagedType = (UnmanagedType) pos_values [0];
1014 object value = GetFieldValue ("SizeParamIndex");
1015 if (value != null && UnmanagedType != UnmanagedType.LPArray) {
1016 Error_AttributeEmitError ("SizeParamIndex field is not valid for the specified unmanaged type");
1020 object o = GetFieldValue ("ArraySubType");
1021 UnmanagedType array_sub_type = o == null ? (UnmanagedType) 0x50 /* NATIVE_MAX */ : (UnmanagedType) o;
1023 switch (UnmanagedType) {
1024 case UnmanagedType.CustomMarshaler: {
1025 MethodInfo define_custom = typeof (UnmanagedMarshal).GetMethod ("DefineCustom",
1026 BindingFlags.Static | BindingFlags.Public | BindingFlags.NonPublic);
1027 if (define_custom == null) {
1028 Report.RuntimeMissingSupport (Location, "set marshal info");
1032 object [] args = new object [4];
1033 args [0] = GetFieldValue ("MarshalTypeRef");
1034 args [1] = GetFieldValue ("MarshalCookie");
1035 args [2] = GetFieldValue ("MarshalType");
1036 args [3] = Guid.Empty;
1037 return (UnmanagedMarshal) define_custom.Invoke (null, args);
1039 case UnmanagedType.LPArray: {
1040 object size_const = GetFieldValue ("SizeConst");
1041 object size_param_index = GetFieldValue ("SizeParamIndex");
1043 if ((size_const != null) || (size_param_index != null)) {
1044 MethodInfo define_array = typeof (UnmanagedMarshal).GetMethod ("DefineLPArrayInternal",
1045 BindingFlags.Static | BindingFlags.Public | BindingFlags.NonPublic);
1046 if (define_array == null) {
1047 Report.RuntimeMissingSupport (Location, "set marshal info");
1051 object [] args = new object [3];
1052 args [0] = array_sub_type;
1053 args [1] = size_const == null ? -1 : size_const;
1054 args [2] = size_param_index == null ? -1 : size_param_index;
1055 return (UnmanagedMarshal) define_array.Invoke (null, args);
1058 return UnmanagedMarshal.DefineLPArray (array_sub_type);
1060 case UnmanagedType.SafeArray:
1061 return UnmanagedMarshal.DefineSafeArray (array_sub_type);
1063 case UnmanagedType.ByValArray:
1064 FieldMember fm = attr as FieldMember;
1066 Error_AttributeEmitError ("Specified unmanaged type is only valid on fields");
1069 return UnmanagedMarshal.DefineByValArray ((int) GetFieldValue ("SizeConst"));
1071 case UnmanagedType.ByValTStr:
1072 return UnmanagedMarshal.DefineByValTStr ((int) GetFieldValue ("SizeConst"));
1075 return UnmanagedMarshal.DefineUnmanagedMarshal (UnmanagedType);
1079 public CharSet GetCharSetValue ()
1081 return (CharSet)System.Enum.Parse (typeof (CharSet), pos_values [0].ToString ());
1084 public MethodImplOptions GetMethodImplOptions ()
1086 if (pos_values [0].GetType () != typeof (MethodImplOptions))
1087 return (MethodImplOptions)System.Enum.ToObject (typeof (MethodImplOptions), pos_values [0]);
1088 return (MethodImplOptions)pos_values [0];
1091 public LayoutKind GetLayoutKindValue ()
1093 if (!RootContext.StdLib || pos_values [0].GetType () != typeof (LayoutKind))
1094 return (LayoutKind)System.Enum.ToObject (typeof (LayoutKind), pos_values [0]);
1096 return (LayoutKind)pos_values [0];
1099 public override bool Equals (object obj)
1101 Attribute a = obj as Attribute;
1105 return Type == a.Type && Target == a.Target;
1108 public override int GetHashCode ()
1110 return base.GetHashCode ();
1113 public object GetParameterDefaultValue ()
1115 return pos_values [0];
1119 /// Emit attribute for Attributable symbol
1121 public void Emit (ListDictionary allEmitted)
1123 CustomAttributeBuilder cb = Resolve ();
1127 AttributeUsageAttribute usage_attr = GetAttributeUsage ();
1128 if ((usage_attr.ValidOn & Target) == 0) {
1129 Report.Error (592, Location, "The attribute `{0}' is not valid on this declaration type. " +
1130 "It is valid on `{1}' declarations only",
1131 GetSignatureForError (), GetValidTargets ());
1136 foreach (Attributable owner in owners)
1137 owner.ApplyAttributeBuilder (this, cb);
1139 catch (Exception e) {
1140 Error_AttributeEmitError (e.Message);
1144 if (!usage_attr.AllowMultiple && allEmitted != null) {
1145 if (allEmitted.Contains (this)) {
1146 ArrayList a = allEmitted [this] as ArrayList;
1148 a = new ArrayList (2);
1149 allEmitted [this] = a;
1153 allEmitted.Add (this, null);
1157 if (!RootContext.VerifyClsCompliance)
1160 // Here we are testing attribute arguments for array usage (error 3016)
1161 if (Owner.IsClsComplianceRequired ()) {
1162 if (PosArguments != null) {
1163 foreach (Argument arg in PosArguments) {
1164 // Type is undefined (was error 246)
1165 if (arg.Type == null)
1168 if (arg.Type.IsArray) {
1169 Report.Error (3016, Location, "Arrays as attribute arguments are not CLS-compliant");
1175 if (NamedArguments == null)
1178 foreach (DictionaryEntry de in NamedArguments) {
1179 Argument arg = (Argument) de.Value;
1181 // Type is undefined (was error 246)
1182 if (arg.Type == null)
1185 if (arg.Type.IsArray) {
1186 Report.Error (3016, Location, "Arrays as attribute arguments are not CLS-compliant");
1193 public MethodBuilder DefinePInvokeMethod (TypeBuilder builder, string name,
1194 MethodAttributes flags, Type ret_type, Type [] param_types)
1196 if (pos_values == null)
1197 // TODO: It is not neccessary to call whole Resolve (ApplyAttribute does it now) we need only ctor args.
1198 // But because a lot of attribute class code must be rewritten will be better to wait...
1204 string dll_name = (string)pos_values [0];
1207 CallingConvention cc = CallingConvention.Winapi;
1208 CharSet charset = CodeGen.Module.DefaultCharSet;
1209 bool preserve_sig = true;
1210 string entry_point = name;
1211 bool best_fit_mapping = false;
1212 bool throw_on_unmappable = false;
1213 bool exact_spelling = false;
1214 bool set_last_error = false;
1216 bool best_fit_mapping_set = false;
1217 bool throw_on_unmappable_set = false;
1218 bool exact_spelling_set = false;
1219 bool set_last_error_set = false;
1221 MethodInfo set_best_fit = null;
1222 MethodInfo set_throw_on = null;
1223 MethodInfo set_exact_spelling = null;
1224 MethodInfo set_set_last_error = null;
1226 if (field_info_arr != null) {
1228 for (int i = 0; i < field_info_arr.Length; i++) {
1229 switch (field_info_arr [i].Name) {
1230 case "BestFitMapping":
1231 best_fit_mapping = (bool) field_values_arr [i];
1232 best_fit_mapping_set = true;
1234 case "CallingConvention":
1235 cc = (CallingConvention) field_values_arr [i];
1238 charset = (CharSet) field_values_arr [i];
1241 entry_point = (string) field_values_arr [i];
1243 case "ExactSpelling":
1244 exact_spelling = (bool) field_values_arr [i];
1245 exact_spelling_set = true;
1248 preserve_sig = (bool) field_values_arr [i];
1250 case "SetLastError":
1251 set_last_error = (bool) field_values_arr [i];
1252 set_last_error_set = true;
1254 case "ThrowOnUnmappableChar":
1255 throw_on_unmappable = (bool) field_values_arr [i];
1256 throw_on_unmappable_set = true;
1259 throw new InternalErrorException (field_info_arr [i].ToString ());
1264 if (throw_on_unmappable_set || best_fit_mapping_set || exact_spelling_set || set_last_error_set) {
1265 set_best_fit = typeof (MethodBuilder).
1266 GetMethod ("set_BestFitMapping", BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic);
1267 set_throw_on = typeof (MethodBuilder).
1268 GetMethod ("set_ThrowOnUnmappableChar", BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic);
1269 set_exact_spelling = typeof (MethodBuilder).
1270 GetMethod ("set_ExactSpelling", BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic);
1271 set_set_last_error = typeof (MethodBuilder).
1272 GetMethod ("set_SetLastError", BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic);
1274 if ((set_best_fit == null) || (set_throw_on == null) ||
1275 (set_exact_spelling == null) || (set_set_last_error == null)) {
1276 Report.Error (-1, Location,
1277 "The ThrowOnUnmappableChar, BestFitMapping, SetLastError, " +
1278 "and ExactSpelling attributes can only be emitted when running on the mono runtime.");
1284 MethodBuilder mb = builder.DefinePInvokeMethod (
1285 name, dll_name, entry_point, flags | MethodAttributes.HideBySig | MethodAttributes.PinvokeImpl,
1286 CallingConventions.Standard, ret_type, param_types, cc, charset);
1289 mb.SetImplementationFlags (MethodImplAttributes.PreserveSig);
1291 if (throw_on_unmappable_set)
1292 set_throw_on.Invoke (mb, 0, null, new object [] { throw_on_unmappable }, null);
1293 if (best_fit_mapping_set)
1294 set_best_fit.Invoke (mb, 0, null, new object [] { best_fit_mapping }, null);
1295 if (exact_spelling_set)
1296 set_exact_spelling.Invoke (mb, 0, null, new object [] { exact_spelling }, null);
1297 if (set_last_error_set)
1298 set_set_last_error.Invoke (mb, 0, null, new object [] { set_last_error }, null);
1302 catch (ArgumentException e) {
1303 Error_AttributeEmitError (e.Message);
1308 private Expression GetValue ()
1310 if (PosArguments == null || PosArguments.Count < 1)
1313 return ((Argument) PosArguments [0]).Expr;
1316 public string GetString ()
1318 Expression e = GetValue ();
1319 if (e is StringLiteral)
1320 return (e as StringLiteral).Value;
1324 public bool GetBoolean ()
1326 Expression e = GetValue ();
1327 if (e is BoolLiteral)
1328 return (e as BoolLiteral).Value;
1332 public Type GetArgumentType ()
1334 TypeOf e = GetValue () as TypeOf;
1337 return e.TypeArgument;
1343 /// For global attributes (assembly, module) we need special handling.
1344 /// Attributes can be located in the several files
1346 public class GlobalAttribute : Attribute
1348 public readonly NamespaceEntry ns;
1350 public GlobalAttribute (NamespaceEntry ns, string target,
1351 Expression left_expr, string identifier, object[] args, Location loc, bool nameEscaped):
1352 base (target, left_expr, identifier, args, loc, nameEscaped)
1359 // RootContext.ToplevelTypes has a single NamespaceEntry which gets overwritten
1360 // each time a new file is parsed. However, we need to use the NamespaceEntry
1361 // in effect where the attribute was used. Since code elsewhere cannot assume
1362 // that the NamespaceEntry is right, just overwrite it.
1364 // Precondition: RootContext.ToplevelTypes == null
1366 if (RootContext.ToplevelTypes.NamespaceEntry != null)
1367 throw new InternalErrorException (Location + " non-null NamespaceEntry");
1369 RootContext.ToplevelTypes.NamespaceEntry = ns;
1374 RootContext.ToplevelTypes.NamespaceEntry = null;
1377 protected override TypeExpr ResolveAsTypeTerminal (Expression expr, IResolveContext ec, bool silent)
1381 return base.ResolveAsTypeTerminal (expr, ec, silent);
1388 protected override ConstructorInfo ResolveConstructor (EmitContext ec)
1392 return base.ResolveConstructor (ec);
1399 protected override bool ResolveNamedArguments (EmitContext ec)
1403 return base.ResolveNamedArguments (ec);
1411 public class Attributes {
1412 public readonly ArrayList Attrs;
1414 public Attributes (Attribute a)
1416 Attrs = new ArrayList ();
1420 public Attributes (ArrayList attrs)
1425 public void AddAttributes (ArrayList attrs)
1427 Attrs.AddRange (attrs);
1430 public void AttachTo (Attributable attributable)
1432 foreach (Attribute a in Attrs)
1433 a.AttachTo (attributable);
1437 /// Checks whether attribute target is valid for the current element
1439 public bool CheckTargets ()
1441 foreach (Attribute a in Attrs) {
1442 if (!a.CheckTarget ())
1448 public Attribute Search (Type t)
1450 foreach (Attribute a in Attrs) {
1451 if (a.ResolveType () == t)
1458 /// Returns all attributes of type 't'. Use it when attribute is AllowMultiple = true
1460 public Attribute[] SearchMulti (Type t)
1462 ArrayList ar = null;
1464 foreach (Attribute a in Attrs) {
1465 if (a.ResolveType () == t) {
1467 ar = new ArrayList ();
1472 return ar == null ? null : ar.ToArray (typeof (Attribute)) as Attribute[];
1479 ListDictionary ld = Attrs.Count > 1 ? new ListDictionary () : null;
1481 foreach (Attribute a in Attrs)
1484 if (ld == null || ld.Count == 0)
1487 foreach (DictionaryEntry d in ld) {
1488 if (d.Value == null)
1491 foreach (Attribute collision in (ArrayList)d.Value)
1492 Report.SymbolRelatedToPreviousError (collision.Location, "");
1494 Attribute a = (Attribute)d.Key;
1495 Report.Error (579, a.Location, "The attribute `{0}' cannot be applied multiple times", a.GetSignatureForError ());
1499 public bool Contains (Type t)
1501 return Search (t) != null;
1506 /// Helper class for attribute verification routine.
1508 sealed class AttributeTester
1510 static PtrHashtable analyzed_types;
1511 static PtrHashtable analyzed_types_obsolete;
1512 static PtrHashtable analyzed_member_obsolete;
1513 static PtrHashtable analyzed_method_excluded;
1516 static PtrHashtable fixed_buffer_cache;
1519 static object TRUE = new object ();
1520 static object FALSE = new object ();
1522 static AttributeTester ()
1527 private AttributeTester ()
1531 public static void Reset ()
1533 analyzed_types = new PtrHashtable ();
1534 analyzed_types_obsolete = new PtrHashtable ();
1535 analyzed_member_obsolete = new PtrHashtable ();
1536 analyzed_method_excluded = new PtrHashtable ();
1538 fixed_buffer_cache = new PtrHashtable ();
1542 public enum Result {
1549 /// Returns true if parameters of two compared methods are CLS-Compliant.
1550 /// It tests differing only in ref or out, or in array rank.
1552 public static Result AreOverloadedMethodParamsClsCompliant (Type[] types_a, Type[] types_b)
1554 if (types_a == null || types_b == null)
1557 if (types_a.Length != types_b.Length)
1560 Result result = Result.Ok;
1561 for (int i = 0; i < types_b.Length; ++i) {
1562 Type aType = types_a [i];
1563 Type bType = types_b [i];
1565 if (aType.IsArray && bType.IsArray) {
1566 Type a_el_type = aType.GetElementType ();
1567 Type b_el_type = bType.GetElementType ();
1568 if (aType.GetArrayRank () != bType.GetArrayRank () && a_el_type == b_el_type) {
1569 result = Result.RefOutArrayError;
1573 if (a_el_type.IsArray || b_el_type.IsArray) {
1574 result = Result.ArrayArrayError;
1579 Type aBaseType = aType;
1580 bool is_either_ref_or_out = false;
1582 if (aType.IsByRef || aType.IsPointer) {
1583 aBaseType = aType.GetElementType ();
1584 is_either_ref_or_out = true;
1587 Type bBaseType = bType;
1588 if (bType.IsByRef || bType.IsPointer)
1590 bBaseType = bType.GetElementType ();
1591 is_either_ref_or_out = !is_either_ref_or_out;
1594 if (aBaseType != bBaseType)
1597 if (is_either_ref_or_out)
1598 result = Result.RefOutArrayError;
1604 /// This method tests the CLS compliance of external types. It doesn't test type visibility.
1606 public static bool IsClsCompliant (Type type)
1611 object type_compliance = analyzed_types[type];
1612 if (type_compliance != null)
1613 return type_compliance == TRUE;
1615 if (type.IsPointer) {
1616 analyzed_types.Add (type, null);
1621 if (type.IsArray || type.IsByRef) {
1622 result = IsClsCompliant (TypeManager.GetElementType (type));
1624 result = AnalyzeTypeCompliance (type);
1626 analyzed_types.Add (type, result ? TRUE : FALSE);
1631 /// Returns IFixedBuffer implementation if field is fixed buffer else null.
1633 public static IFixedBuffer GetFixedBuffer (FieldInfo fi)
1635 FieldBase fb = TypeManager.GetField (fi);
1637 return fb as IFixedBuffer;
1641 object o = fixed_buffer_cache [fi];
1643 if (System.Attribute.GetCustomAttribute (fi, TypeManager.fixed_buffer_attr_type) == null) {
1644 fixed_buffer_cache.Add (fi, FALSE);
1648 IFixedBuffer iff = new FixedFieldExternal (fi);
1649 fixed_buffer_cache.Add (fi, iff);
1656 return (IFixedBuffer)o;
1662 public static void VerifyModulesClsCompliance ()
1664 Module[] modules = RootNamespace.Global.Modules;
1665 if (modules == null)
1668 // The first module is generated assembly
1669 for (int i = 1; i < modules.Length; ++i) {
1670 Module module = modules [i];
1671 if (!IsClsCompliant (module)) {
1672 Report.Error (3013, "Added modules must be marked with the CLSCompliant attribute " +
1673 "to match the assembly", module.Name);
1679 public static Type GetImportedIgnoreCaseClsType (string name)
1681 foreach (Assembly a in RootNamespace.Global.Assemblies) {
1682 Type t = a.GetType (name, false, true);
1686 if (IsClsCompliant (t))
1692 static bool IsClsCompliant (ICustomAttributeProvider attribute_provider)
1694 object[] CompliantAttribute = attribute_provider.GetCustomAttributes (TypeManager.cls_compliant_attribute_type, false);
1695 if (CompliantAttribute.Length == 0)
1698 return ((CLSCompliantAttribute)CompliantAttribute[0]).IsCompliant;
1701 static bool AnalyzeTypeCompliance (Type type)
1703 DeclSpace ds = TypeManager.LookupDeclSpace (type);
1705 return ds.IsClsComplianceRequired ();
1708 object[] CompliantAttribute = type.GetCustomAttributes (TypeManager.cls_compliant_attribute_type, false);
1709 if (CompliantAttribute.Length == 0)
1710 return IsClsCompliant (type.Assembly);
1712 return ((CLSCompliantAttribute)CompliantAttribute[0]).IsCompliant;
1716 /// Returns instance of ObsoleteAttribute when type is obsolete
1718 public static ObsoleteAttribute GetObsoleteAttribute (Type type)
1720 object type_obsolete = analyzed_types_obsolete [type];
1721 if (type_obsolete == FALSE)
1724 if (type_obsolete != null)
1725 return (ObsoleteAttribute)type_obsolete;
1727 ObsoleteAttribute result = null;
1728 if (type.IsByRef || type.IsArray || type.IsPointer) {
1729 result = GetObsoleteAttribute (TypeManager.GetElementType (type));
1731 DeclSpace type_ds = TypeManager.LookupDeclSpace (type);
1733 // Type is external, we can get attribute directly
1734 if (type_ds == null) {
1735 object[] attribute = type.GetCustomAttributes (TypeManager.obsolete_attribute_type, false);
1736 if (attribute.Length == 1)
1737 result = (ObsoleteAttribute)attribute [0];
1739 // Is null during corlib bootstrap
1740 if (TypeManager.obsolete_attribute_type != null)
1741 result = type_ds.GetObsoleteAttribute ();
1745 // Cannot use .Add because of corlib bootstrap
1746 analyzed_types_obsolete [type] = result == null ? FALSE : result;
1751 /// Returns instance of ObsoleteAttribute when method is obsolete
1753 public static ObsoleteAttribute GetMethodObsoleteAttribute (MethodBase mb)
1755 IMethodData mc = TypeManager.GetMethod (mb);
1757 return mc.GetObsoleteAttribute ();
1759 // compiler generated methods are not registered by AddMethod
1760 if (mb.DeclaringType is TypeBuilder)
1763 if (mb.IsSpecialName) {
1764 PropertyInfo pi = PropertyExpr.AccessorTable [mb] as PropertyInfo;
1766 if (TypeManager.LookupDeclSpace (pi.DeclaringType) == null)
1767 return GetMemberObsoleteAttribute (pi);
1772 EventInfo ei = EventExpr.AccessorTable [mb] as EventInfo;
1774 if (TypeManager.LookupDeclSpace (ei.DeclaringType) == null)
1775 return GetMemberObsoleteAttribute (ei);
1781 return GetMemberObsoleteAttribute (mb);
1785 /// Returns instance of ObsoleteAttribute when member is obsolete
1787 public static ObsoleteAttribute GetMemberObsoleteAttribute (MemberInfo mi)
1789 object type_obsolete = analyzed_member_obsolete [mi];
1790 if (type_obsolete == FALSE)
1793 if (type_obsolete != null)
1794 return (ObsoleteAttribute)type_obsolete;
1796 ObsoleteAttribute oa = System.Attribute.GetCustomAttribute (mi, TypeManager.obsolete_attribute_type, false)
1797 as ObsoleteAttribute;
1798 analyzed_member_obsolete.Add (mi, oa == null ? FALSE : oa);
1803 /// Common method for Obsolete error/warning reporting.
1805 public static void Report_ObsoleteMessage (ObsoleteAttribute oa, string member, Location loc)
1808 Report.Error (619, loc, "`{0}' is obsolete: `{1}'", member, oa.Message);
1812 if (oa.Message == null) {
1813 Report.Warning (612, 1, loc, "`{0}' is obsolete", member);
1816 Report.Warning (618, 2, loc, "`{0}' is obsolete: `{1}'", member, oa.Message);
1819 public static bool IsConditionalMethodExcluded (MethodBase mb)
1821 object excluded = analyzed_method_excluded [mb];
1822 if (excluded != null)
1823 return excluded == TRUE ? true : false;
1825 ConditionalAttribute[] attrs = mb.GetCustomAttributes (TypeManager.conditional_attribute_type, true)
1826 as ConditionalAttribute[];
1827 if (attrs.Length == 0) {
1828 analyzed_method_excluded.Add (mb, FALSE);
1832 foreach (ConditionalAttribute a in attrs) {
1833 if (RootContext.AllDefines.Contains (a.ConditionString)) {
1834 analyzed_method_excluded.Add (mb, FALSE);
1838 analyzed_method_excluded.Add (mb, TRUE);
1843 /// Analyzes class whether it has attribute which has ConditionalAttribute
1844 /// and its condition is not defined.
1846 public static bool IsAttributeExcluded (Type type)
1851 Class class_decl = TypeManager.LookupDeclSpace (type) as Class;
1853 // TODO: add caching
1854 // TODO: merge all Type bases attribute caching to one cache to save memory
1855 if (class_decl == null) {
1856 object[] attributes = type.GetCustomAttributes (TypeManager.conditional_attribute_type, false);
1857 foreach (ConditionalAttribute ca in attributes) {
1858 if (RootContext.AllDefines.Contains (ca.ConditionString))
1861 return attributes.Length > 0;
1864 return class_decl.IsExcluded ();
1867 public static Type GetCoClassAttribute (Type type)
1869 TypeContainer tc = TypeManager.LookupInterface (type);
1871 object[] o = type.GetCustomAttributes (TypeManager.coclass_attr_type, false);
1874 return ((System.Runtime.InteropServices.CoClassAttribute)o[0]).CoClass;
1877 if (tc.OptAttributes == null)
1880 Attribute a = tc.OptAttributes.Search (TypeManager.coclass_attr_type);
1884 return a.GetCoClassAttributeValue ();